Home / 51,387.74-70,915.47-28,727.65

Finding the Fourth Proportional to 51,387.74, 70,915.47 and 28,727.65

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Solution

The fourth proportional to 51,387.74, 70,915.47 and 28,727.65 is: 39,644.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387.74 : 70,915.47 = 28,727.65 : x
  2. Step 2: Convert to fraction form
    51,387.74/70,915.47 = 28,727.65/x
  3. Step 3: Cross multiply
    51,387.74x = 70,915.47 × 28,727.65
  4. Step 4: Simplify right side
    51,387.74x = 2,037,234,801.75
  5. Step 5: Solve for x
    x = 2,037,234,801.75/51,387.74
  6. Step 6: Final answer
    x = 39,644.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.